Around 1938 Cossor introduced 2 digit numbers. Sometimes there is a similar or equivelent set with the normal 3 or 4 digit numbers.

Start here in Rogues Gallary 2 the model numbers are not in date order.

The type 74 is a special case there are at least 3 variants with either a 3 knob or 4 knob layout

Picture of the 77B provided by Alf Thanks Alf :)

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P43

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AC/DC Mains set Model 47

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63

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71

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Model 74 Feb 1940 There are 3 versions of this set

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39  3V Battery

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M44

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49B

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61

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72

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77B Bakelite Case version of the model 77

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45

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62


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67A the Model 67 looks similar but has a single playing turntable fitted

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73

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34 4V Battery

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AD41

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Model 53

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62B

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70

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Model 74 There are 3 Versions of this set

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82

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85